Artificial selection to obtain cows yielding higher milk output represents

Options

A. Stabilising selection as it stabilizes this character in the population
B. Directional selection as it pushes the mean of character in one direction
C. Disruptive selection as it splits population into two: one higher yielding output and other lower output
D. Stabilising selection followed by disruptive selection as it stabilizes the population to produce higher yielding cows

Answer

B

Explanation

Directional selection as it pushes the mean of character in one direction